optimistic rollup

This week Anna (https://twitter.com/AnnaRRose) chats with Wanseob Lim (https://twitter.com/wanseoblim) an Applied ZKP Developer in the Privacy & Scaling Exploration Team at the Ethereum Foundation and one of the authors of the Zkopru protocol (https://zkopru.network/). They explore how Zkopru uses optimistic rollups and zero knowledge proofs to create a privacy-focused Layer 2. Wanseob walks us through the transaction process and how the protocol is built to circumvent high gas fees. We also hear a little about what’s to come in the Zkopru ecosystem from merchandising to private exchange of NFTs. Here are some links for the episode: - Zkopru's website (https://zkopru.network/) - Zkopru’s blog: Privacy & Scaling Explorations (https://scaling-privacy-explorations.medium.com/) - Announcement of Zkopru (zk optimistic rollup) for private transactions (https://ethresear.ch/t/zkopru-zk-optimistic-rollup-for-private-transactions/7717) - zkSummit6: Decentralized privacy layer is coming by Wanseob Lim (https://www.youtube.com/watch?v=443EZ0ndaio) - Episode 177: Unwrapping Optimism with Ben and Mark (https://zeroknowledge.fm/177-2/) - Episode 179: Diving into Arbitrum’s Optimistic Rollup (https://zeroknowledge.fm/179-2/) There are a lot of exciting events and initiatives for the ZK Podcast on the horizon! If you do want to keep track of what's going on be sure to check out our channels - especially: The ZK community board: https://community.zeroknowledge.fm/ The ZK Jobs Board: https://jobsboard.zeroknowledge.fm/ Today’s episode is sponsored by Aztec (https://aztec.network/). Aztec aims to be the privacy layer for Ethereum. They believe that unlocking programmable privacy is the next frontier for blockchains. Aztec is the first zero knowledge rollup built from the ground up for anonymous payments and DeFi transactions. Try out Aztec to send funds privately on zk.money (https://zk.money/). If you like what we do: Follow us on Twitter - @zeroknowledgefm (https://twitter.com/zeroknowledgefm) Join us on Telegram (https://t.me/joinchat/TORo7aknkYNLHmCM) Catch us on Youtube (https://www.youtube.com/channel/UCYWsYz5cKw4wZ9Mpe4kuM_g) Read up on the r/ZKPodcast subreddit (https://www.reddit.com/r/zkpodcast) Give us feedback! -https://forms.gle/iKMSrVtcAn6BByH6A Support our Gitcoin Grant (https://gitcoin.co/grants/329/zero-knowledge-podcast-2) Support us on the ZKPatreon (https://www.patreon.com/zeroknowledge) Donate through coinbase.commerce (https://commerce.coinbase.com/checkout/f1e56274-c92b-4a99-802f-50727d651b38)

This week, Anna (https://twitter.com/AnnaRRose) and James (https://twitter.com/_prestwich) host Ed Felten (https://twitter.com/EdFelten) and Steven Goldfeder (https://twitter.com/sgoldfed), co-founders of Arbitrum, an Optimistic Rollup project born before the term "Optimistic Rollup" was even coined. Ed and Steven tell Arbitrum’s story, from its beginnings as a chain-agnostic university project in 2014 to become an Ethereum-based Optimistic L2 Rollup solution based on fraud proofs. They cover Arbitrum’s interactive fraud proofs, how they differ from other solutions like Optimism, and how Arbitrum and the Optimistic Rollup helps Ethereum scale. Here are some links for this episode: - Inside Arbitrum (https://developer.offchainlabs.com/docs/inside_arbitrum), an accessible general explainer about what is the Arbitrum rollup - Unwrapping Optimism with Ben and Mark, Zero Knowledge episode 177 (https://www.zeroknowledge.fm/177), the latest of our impromptu Ethereum L2 series. - Zk-zk-rollup & zk.money with Zac and Joe from Aztec, Zero Knowledge episode 176 (https://www.zeroknowledge.fm/176) - zkEVM & zkPorter with Matter Labs, Zero Knowledge episode 175 (https://www.zeroknowledge.fm/175) - John Adler on Optimistic vs ZK Rollup and the data availability problem, Zero Knowledge episode 151 (https://www.zeroknowledge.fm/151) - Why Sequencers are the Future - Mark Tyneway (Optimism), zkSessions from March 2021 (https://www.youtube.com/watch?v=U3onX8O_H4U) If you're looking to work in blockchain and the zk space, check out the ZK Jobs board (https://www.zeroknowledge.fm/zkjobsboard)! You'll find great opportunities to work at the forefront of blockchain tech, divided into business, engineering and cryptography positions. Also, we are hosting the second ZK Jobs Fair on May 19, right after our zkSessions on zk languages. Register for free here on Hopin: https://hopin.com/events/zksessions-the-zk-languages-showdown Thanks to this episode’s sponsor, Aave (https://aave.com) Aave is an open source, decentralised non-custodial liquidity protocol on Ethereum. With Aave, users can participate as depositors meaning they provide liquidity to earn a passive income. or they can also act as borrowers to borrow in an overcollateralized way or undercollateralized way (think: one-block liquidity Flash Loan). Aave recently deployed a new market on Polygon’s sidechain to let users pay much lower gas fees. Assets can be transferred from Ethereum with the Polygon Bridge and put to use on Aave’s Polygon markets. Learn more about it here. (https://medium.com/aave/exploring-new-frontiers-with-aave-59563ddd2405) So thanks again, Aave! If you like what we do: Follow us on Twitter - @zeroknowledgefm (https://twitter.com/zeroknowledgefm) Join us on Telegram (https://t.me/joinchat/TORo7aknkYNLHmCM) Catch us on Youtube (https://www.youtube.com/channel/UCYWsYz5cKw4wZ9Mpe4kuM_g) Read up on the r/ZKPodcast subreddit (https://www.reddit.com/r/zkpodcast) Give us feedback! -https://forms.gle/iKMSrVtcAn6BByH6A Support our Gitcoin Grant (https://gitcoin.co/grants/329/zero-knowledge-podcast-2) Support us on the ZKPatreon (https://www.patreon.com/zeroknowledge) Donate through coinbase.commerce (https://commerce.coinbase.com/checkout/f1e56274-c92b-4a99-802f-50727d651b38) Or directly here: ETH: 0xC0FFEE1B5083230a5154F55f253B6b6ae8F29B1a BTC: 1cafekGa3podM4fBxPSQc6RCEXQNTK8Zz ZEC: t1R2bujRF3Hzte9ALHpMJvY8t5kb9ut9SpQ

This week, Anna (https://twitter.com/AnnaRRose) and James (https://twitter.com/_prestwich) chat with Ben Jones (https://twitter.com/ben_chain) and Mark Tyneway (https://twitter.com/tyneslol) from Optimism, the builders of Optimistic Ethereum. The interview continues the series of L2-focused episodes we have been airing on the Zero Knowledge Podcast and comes just as Optimism gears up for launch. Anna, James, Ben and Mark discuss the inner workings of their Optimistic Rollup, diving deep into concepts like data availability, the fraud proof, the role of the sequencer and the rollup’s complex relationship with layer-one. Ben and Mark then lay out their vision for rollup-centric Ethereum and how rollup interoperability is the next major focus area for the ecosystem. Here are some links for this episode: - Handshake Protocol with Mark Tyneway, Zero Knowledge episode 132 (https://www.zeroknowledge.fm/132) - Rayonism (https://rayonism.io), the sharded rollup proposal Mark mentioned - Zk-zk-rollup & zk.money with Zac and Joe from Aztec, Zero Knowledge episode 176 (https://www.zeroknowledge.fm/176) - zkEVM & zkPorter with Matter Labs, Zero Knowledge episode 175 (https://www.zeroknowledge.fm/175) - John Adler on Optimistic vs ZK Rollup and the data availability problem, Zero Knowledge episode 151 (https://www.zeroknowledge.fm/151) - zkSessions: Why Sequencers are the Future - Mark Tyneway (Optimism), zkSessions from March 2021 (https://www.youtube.com/watch?v=U3onX8O_H4U) - The upcoming scaling Ethereum hackathon (https://scaling.ethglobal.co/) Ben mentioned. Thanks to this week’s sponsor, Least Authority (https://leastauthority.com). In addition to their security reviews of innovative projects such as Loopring, Mina, and Filecoin, this May, Least Authority will be releasing a whitepaper on ZKAPs (https://leastauthority.com/zkaps/) – Zero-Knowledge Access Passes. ZKAPs is an anonymous, token-based authorization protocol that facilitates an online exchange of value while disconnecting the necessary payment data from the day-to-day usage service data of customers. Also coming this summer is the MoonMath Manual – a beginner’s guide to zk-SNARKS, which introduces the theory and application of zk-SNARKs from various angles. Signup for Least Authority's newsletter to stay in touch and be notified of the release of the ZKAPs Whitepaper, PrivateStorage, the MoonMath Manual, continuous security audit reports, job openings and more. Visit https://leastauthority.com/newsletter (https://leastauthority.com/newsletter) to join their mailing list. If you like what we do: Follow us on Twitter - @zeroknowledgefm (https://twitter.com/zeroknowledgefm) Join us on Telegram (https://t.me/joinchat/B_81tQ57-ThZg8yOSx5gjA) Catch us on Youtube (https://www.youtube.com/channel/UCYWsYz5cKw4wZ9Mpe4kuM_g) Read up on the r/ZKPodcast subreddit (https://www.reddit.com/r/zkpodcast) Give us feedback! -https://forms.gle/iKMSrVtcAn6BByH6A Support our Gitcoin Grant (https://gitcoin.co/grants/329/zero-knowledge-podcast-2) Support us on the ZKPatreon (https://www.patreon.com/zeroknowledge) Donate through coinbase.commerce (https://commerce.coinbase.com/checkout/f1e56274-c92b-4a99-802f-50727d651b38) Or directly here: ETH: 0xC0FFEE1B5083230a5154F55f253B6b6ae8F29B1a BTC: 1cafekGa3podM4fBxPSQc6RCEXQNTK8Zz ZEC: t1R2bujRF3Hzte9ALHpMJvY8t5kb9ut9SpQ

In this episode, we chat with John Adler - co-founder of Lazy Ledger (now Celestia) and Fuel Labs. We compare Optimistic Rollups and ZK Rollups as well as discuss how Ethereum, specifically Eth1, could look over the next few years. We also talk about the data availability challenge in blockchains and how Lazy Ledger aims to solve this. Relevant links can be found here: James Prestwich's thread on Scalability vs Throughput myths (https://twitter.com/_prestwich/status/1284174486674083840) The LazyLedger academic paper (https://arxiv.org/abs/1905.09274) Security analysis of ORU from Fuel (https://docs.fuel.sh/v1.0.0/Concepts/Fundamentals/Security%20Analysis.html) What would a rollup-centric ethereum roadmap look like? (https://ethereum-magicians.org/t/a-rollup-centric-ethereum-roadmap/4698) Video: "Scaling Ethereum in 2020 and Beyond" - Vitalik Buterin (https://www.youtube.com/watch?v=r0jtV9mxdI0) Some additional thoughts from John on Eth1 (https://twitter.com/jadler0/status/1204444854719303680) Thanks to our sponsor Least Authority (https://leastauthority.com/). Least Authority is a security consulting company known for their dedication to pushing the limits on how to build privacy-respecting solutions. They are a team of security researchers, open source developers, privacy advocates, cryptographers who specialize in security audits, design specification reviews, and security-by-design. Known for their security reviews, including work with zero knowledge proofs as well as having implemented zero-knowledge access passes with the distributed storage system, Tahoe-LAFS. If you are skilled in the area of zero-knowledge protocols and other advanced cryptography for scalability and privacy enhancing tech, you should get in contact with them. They’re expanding their team, so email them at jobs@leastauthority.com (mailto:jobs@leastauthority.com) Thanks again Least Authority (https://leastauthority.com/) If you like what we do: Follow us on Twitter - @zeroknowledgefm -https://twitter.com/zeroknowledgefm Join us on Telegram -https://t.me/joinchat/B81tQ57-ThZg8yOSx5gjA Catch us on Youtube -https://www.youtube.com/channel/UCYWsYz5cKw4wZ9Mpe4kuMg Read up on the r/ZKPodcast subreddit -https://www.reddit.com/r/zkpodcast Give us feedback! -https://forms.gle/iKMSrVtcAn6BByH6A Support our Gitcoin Grant -https://gitcoin.co/grants/329/zero-knowledge-podcast-2 Support us on the ZKPatreon -https://www.patreon.com/zeroknowledge Or directly here: ETH: 0xC0FFEE1B5083230a5154F55f253B6b6ae8F29B1a BTC: 1cafekGa3podM4fBxPSQc6RCEXQNTK8Zz ZEC: t1R2bujRF3Hzte9ALHpMJvY8t5kb9ut9SpQ